Wiley Acing the GATE: Electrical Engineering, 2ed, 2020

Debashis Chatterjee, J. S. Lather, Lalita Gupta

ISBN: 9788126598489

INR 999


Wiley’s Acing the GATE Examination in Electrical Engineering is intended to be the complete book for those aspiring to compete in the Graduate Aptitude Test in Engineering (GATE) in Electrical Engineering discipline. It comprehensively covers all the topics as prescribed in the latest GATE syllabus in terms of study material, quick reference material and an extensive question bank, complete with solutions. The book offers a number of useful features and the approach is logical concept building rather than only formula based, as offered by the other books generally published in this domain.

Acing the GATE 2018
Syllabus for Electrical Engineering (EE)
1.  Electric Circuits
Circuit Concepts and Laws
Electrical Quantities and Units
Types of Circuits
Current and Voltage Sources
Kirchoff’s Laws
Circuit Analysis Techniques
Equivalent Circuits
Series and Parallel Networks for Resistors, Capacitors and Inductors
Source Transformation
Nodal and Mesh Analysis
Graph of a Network
Directed and Undirected Graph
Planar and Non-Planar Graph
Concept of Tree and Co-Tree
Incidence Matrix
Link Currents: Tie Set Schedules
Cut Set and Tree Branch Voltages
Interelation between Matrices
Summarised Properties
Network Theorems
Linearity and Superposition
Superposition Theorem
Thevenin’s Theorem
Norton’s Theorem
Maximum Power Transfer Theorem
Reciprocity Theorem

Substitution Theorem

Tellengen’s Theorem

Compensation Theorem

Millman’s Theorem

Duality Theorem

Wye(Star)-Delta Transformations

Laplace Transform

Properties of Laplace Transform

Laplace Transform of Periodic Function

Transient Response to DC and AC Networks

Initial and Steady State

DC Transients

AC Transients

Sinusoidal Steady State Analyses Using Phasors


Phasor Relationship for Circuit Elements

Magnetically Coupled Circuits

DOT Convention

Series Connection of Coupled Inductors

Parallel Connection of Coupled Coils

Analysis of Multiwinding Coupled Circuits

Ideal Transformer


Series Resonance

Parallel Resonance


Three-Phase Circuits

Balanced Three-Phase Circuits

Unbalanced Three-Phase Circuits

AC Power Analysis

Sinusoidal Signals

Average Power

Effective (RMS) Values of Current and Voltage

Two-Port Network

Types of Network Parameters

Interconnections of Two-Port Network

Important Formulas

Solved Examples

Practice Exercises

Answers to Practice Exercises

Solved GATE Previous Years’ Questions
Electromagnetic Fields

Coulomb’s Law

Electric Field Intensity

Electric Flux Density
Relation between Electric Flux Density and Electric Field Intensity
Divergence and Curl
Divergence and Stokes’ Theorems
Gauss’ Law
Electric Field and Potential
Due to Point Charge
Due to Line Charge
Due to a Plane (or Infinite Sheet) of Charge
Due to Uniformly Charged Sphere
Due to Different Distributions
Effect of Dielectric Medium on Electric Field
Expression for a Parallel Plate Capacitor
Series and Parallel Combination of Capacitors
Magnetic Flux and Magnetic Field
Biot—Savart Law
Ampere’s Law
Faraday’s Law and Lenz’s Law of Electromagnetic Induction
Faraday’s First Law
Faraday’s Second Law
Derivation of Faraday’s Law
Lenz’s Law
Lorentz Force
Maxwell’s Equations
Magnetic Boundary Conditions
Poynting Vector
Series and Parallel Combination of Inductors
Self Inductance
Mutual Inductance
Self and Mutual Inductance for Simple Configurations
Inductance of Solenoid
Inductance of a Coaxial Cable
Magnetic Circuit and Magnetomotive Force
Important Formulas
Solved Examples
Practice Exercises
Answers to Practice Exercises
Solved GATE Previous Years’ Questions
3  Signals and Systems
Elementary Signals
Basic Operations of Independent Variables

Classification of Signals


Continuous-Time and Discrete-Time Systems

Time Invariant and Time Variant Systems

Linear and Non-Linear Systems

Causal and Non-Causal Systems

Stable and Unstable Systems

Invertible and Non-Invertible Systems

Static and Dynamic Systems

Time Domain Representation of Linear Time Invariant System


Differential Equation Representation of LTI System

Difference Equation Representation of LTI System

Linear Time Invariant System with Random Input

Types of LTI Systems

Continuous-Time Fourier Series

Coefficient Values of Fourier Series

Exponential Form of Fourier Series

Discrete-Time Fourier Series

Power Density Spectrum of Periodic Signal

Continuous-Time Fourier Transform

Properties of Continuous-Time Fourier Transform

Discrete-Time Fourier Transform

Properties of Discrete-Time Fourier Transform

Discrete Fourier ­Transform (DFT) and Fast Fourier ­Transform (FFT)

Discrete Fourier Transform (DFT)

Fast Fourier Transform (FFT)

Sampling Theorem for Continuous-Time Signal

Impulse Train Sampling of a Continuous-Time Signal

Zero-Order Hold Sampling

Laplace Transform

Inverse Laplace Transform

Properties of Laplace Transform

Z-Transform and its Application to the Analysis of LTI System

Region of Convergence

Properties of Z-Transform

Inverse Z-Transform

Realisable LTI Systems

Important Formulas

Solved Examples

Practice Exercises

Answers to Practice Exercises

Solved GATE Previous Years’ Questions
Electrical Machines


Ideal Transformer
Three-Phase Transformer
Parallel Operations of Transformers
Per Unit System
DC Machines
EMF Induction
Type of Connections
DC Generator Characteristics
Parallel Operations of DC Generators
DC Motors
Power Stages in DC Generator and Motor
Testing of DC Machines
Electrical Braking
Three Phase Induction Machines
Rotating Magnetic Field
Equivalent Circuit
Determination of Circuit Parameters
Power Flow Diagram of Induction Machine
Complete Torque−Speed Characteristics
Methods of Starting Three-Phas Induction Motors
Single-Phase Induction Motor
Double-Field Revolving Theory
Equivalent Circuit of Single Phase Induction Machine
Starting Methods for Single Phase Induction Motor
Shaded-Pole Motors
Synchronous Machines
Principle of Operation
Phasor Diagram
Open-Circuit and Short-Circuit Tests
Zero Power Characteristics and Potier Triangle
Generator Voltage Regulation
Two Reaction Theory of Salient-Pole Machines (Blondel’s Two-Reaction Theory)
Synchronous Motor Power Equation
Power Angle Characteristics
Synchronising Power and Synchronising Torque
Power Factor Control
Slip Test
Cogging and Crawling
Comparison between Synchronous Motors and Induction Motors
Stepper and Servo Motors
Stepper Motor
Servo Motors
Important Formulas
Solved Examples
Practice Exercises
Answers to Practice Exercises
Solved GATE Previous Years’ Questions

Power Systems

Power Generation Concepts

Some Standard Terms used in Power Systems

Transmission Line Parameters




Transmission Lines

Transmission Line Performance

Classification of Transmission Lines

Combination of Networks

Ferranti Effect

Surge Impedance

AC and DC Transmission Concepts

Comparison of AC and DC Transmission

Insulated Cables

Construction of Cables

Classification of Cables

Dielectric Stress in Cables

Most Economical Size of Conductor

Grading of Cables

Electric Line Insulators

Electrical Stresses on External  Insulation

Types of Insulators

Voltage Distribution in Suspension Insulator

Electric Field Distribution

Distribution Systems

Classification of Distribution Systems

AC and DC Distribution Systems

Connection Schemes

PU (Per Unit System)

Bus Admittance Matrix

Gauss—Seidel Method of Load Flow Analysis

Newton—Raphson Method for Load Flow Analysis

Voltage Control

Voltage Control by Reactive Power Injection

Voltage Control using Tap Changing Transformers

Voltage Control by Combination of Tap Changing Transformer and Reactive Power Injection

Frequency Control

Power System Stability Concepts

Power-Angle Characteristics

Swing Equation

Equal-Area Criterion

Power Factor Correction

Power Factor Correction Formula
Symmetrical Components
Symmetrical Components Transformation
Unsymmetrical Fault Analysis
Symmetrical Fault Analysis
Open Conductor Faults
Overcurrent Protection
Distance Protection
Differential Protection
Circuit Breakers
Arc Phenomenon
High Voltage Direct Current Transmission
Comparison of HVAC and HVDC
Economics of Power Generation
Important Formulas
Solved Examples
Practice Exercises
Answers to Practice Exercises
Solved GATE Previous Years’ Questions
6  Control Systems
Reasons for Building Control Systems
Classification of System
Modeling of Physical Systems
Effects of Negative Feedback
Sensitivity of Control Systems
Model Simplifications using Block Diagram Algebra
Signal-Flow Graphs
Time-Response Analysis
Transient State Behaviour
Steady-State Behaviour
Transient Response of Second-Order Systems
Nature of System Response vs. Location of Closed-Loop Poles
Stability of Control Systems
Bounded Input Bounded Output Stability
Routh—Hurwitz (RH) Stability Criterion
Root Locus Technique
Concepts of Root Locus − Intuitive Example
Rules of Sketching Root Locus
Systems with Time Delay
Root Locus for System with Gain −K

Frequency Response Analysis

Polar Plots

Closed-Loop Poles and Zeros of a Negative Feedback System

Principle of Argument

Nyquist Contour

Nyquist Stability Criterion

Bode Plots

Advantages of Bode Plots

Measures of System Performance in Frequency Domain


Proportional (P) Control

Integral (I) Control

Proportional plus Integral (PI) Control

Proportional plus Derivative (PD) Control

Proportional Integral Derivative (PID) Control

Lead Compensator

Phase Lag Compensator

Realisation using Op-Amps

State Space Representation

Concept of State

Transforming Differential Equation Representation into State Space Representation

Time Response from State Representation

Obtaining Transfer Function Representation from State Space Representation

State Transition Matrix

Similarity Transformations

Canonical Forms

Important Formulas

Solved Examples

Practice Exercises

Answers to Practice Exercises

Solved GATE Previous Years’ Questions
7  Electrical and Electronic Measurements

Classification of Measuring Instruments

Indicating Type Instruments

Types of Indicating Instruments

Permanent Magnet Moving Coil Instruments

Moving Iron Type Instruments

Electrodynamic Type Meters

Measurement of High-Frequency Signals

Bridges and Potentiometers

Measurement of Inductance

Measurement of Capacitance

Measurement of Mutual Inductance

Measurement of Resistance
Measurement of Current and Voltage
Shunts and Multipliers
Sensitivity of Ammeter and Voltmeter
Measurement of Power and Energy
Measurement of Power in AC Circuits
Measurement of Power in a Three-Phase Circuit
Instrument Transformers
Current Transformer
Voltage Transformer
Linear Variable Differential Transformer (LVDT)
Errors in Instrument Transformers
Digital Voltmeters and Multimeters
Cathode Ray Oscilloscope
Working of CRO
CRO Controls
Measurement of Voltage
Measurement of Frequency
Measurement of Phase Difference
Strain Gauge
Velocity Transducers
Temperature Sensing Devices
Transducers for Fluid Flow Measurement
Capacitive Transducer
Piezo-Electric Transducer
Bourdon Tube
Error Analysis
Types of Errors
Mean Value and Deviation
Precision and Calibration
Important Formulas
Solved Examples
Practice Exercises
Answers to Practice Exercises
Solved GATE Previous Years’ Questions
8  Analog Electronics
Semiconductor Physics
Insulators, Semiconductors and Metals
Types of Semiconductors
Donor and Acceptor Impurities
Drift and Diffusion Currents
Mass Action Law

Energy Band Gap


Hall Effect
Semiconductor Diodes

The Equilibrium p-n Junction Diode

Operational Characteristics

Voltage-Current (V-I ) Characteristics of a Diode

Diode Resistance

Diode Junction Capacitance

Diode Equivalent Circuits

Breakdown Diodes

Bipolar Junction Transistor

Load Line and Modes of Operation

Transistor Configurations

Transistor as Amplifier
Field-Effect Transistor (JFET and MOSFET)

Junction Field Effect Transistors

Simple Diode Circuits

Connecting Diodes in Series and Parallel



Rectifier Circuits

Voltage Regulator
Stability and Biasing


Transistor (BJT) Biasing

Compensation Techniques (Bias Compensation)

Bias Stabilisation in FET (JFET and MOSFET)

Single Stage Amplifiers

Hybrid Equivalent Model

Multistage Amplifiers

Differential Amplifier

Operational Amplifier

Feedback Amplifier

Power Amplifiers
Frequency Response

Low Frequency Response — BJT Amplifier

Low Frequency Response — FET Amplifier

Miller Effect Capacitance

High Frequency Response — BJT Amplifier

High Frequency Response — FET Amplifier

Multistage Frequency Effects
Active Filters

First-Order Low-Pass Butterworth Filter

Second-Order Low-Pass Butterworth Filter
First-Order High-Pass Butterworth Filter
Second-Order High-Pass Butterworth Filter
Band-Pass Filters
Band-Stop Filter
All-Pass Filter
Types of Oscillators
Sinusoidal Oscillator
Astable or Free Running Multivibrator
Monostable Multivibrator
Bistable Multivibrator
Schmitt Trigger
IC-555 Timer
Sample and Hold Circuits
Important Formulas
Solved Examples
Practice Exercises
Answers to Practice Exercises
Solved GATE Previous Years’ Questions
9  Digital Electronics
Number Systems
Types of Number Systems
Number Conversions
Binary and Hexadecimal Arithmetic
Fixed Precision and Overflow
Representation of Binary Numbers
Binary Codes
Boolean Algebra
Boolean Function
Laws of Boolean Algebra
Simplification of Boolean Function
Logic Gates
Universal Gates
Logic Families
Characteristic Parameters
Resistor-Transistor Logic (RTL)
Diode-Transistor Logic (DTL)
Transistor-Transistor Logic (TTL)
Emitter Coupled Logic (ECL) Family
CMOS Logic Family
Combinational Logic Circuits
Arithmetic Combinational Circuits

Decoders and Encoders


Classification of Memory

Read Only Memory (ROM)

Sequential Logic Circuits




D/A and A/D Converters

D/A Converters

A/D Converter


Microprocessor Architecture

Basic Microprocessor Instructions

Assembly Language

8085 Microprocessors

Microprocessor Bus Architecture

Pin Diagram of 8085 Microprocessor

8085 Interrupt Structure

Addressing Modes in 8085

Machine Cycle

Execution of Program by Microprocessor

Memory Interfacing

Memory Structure

Address Decoding and Memory Mapping

Important Formulas

Solved Examples

Practice Exercises

Answers to Practice Exercises

Solved GATE Previous Years’ Questions
Power Electronics

Power Semiconductor Devices

Basic p-n Diode Characteristics

Bipolar Junction Transistor

Construction and Operating Principle of BJTs

Static Characteristics of BJTs

Conduction and Switching Losses of BJT

Paralleling of BJTs and Power Darlingtons


Construction and Operating Principle of Thyristors

Static Characteristics of a Thyristor

Thyristors Turn-ON Methods

Thyristor Protection


Construction and Operating Principle of Triac
Static Characteristics of Triac
Gate Turn-OFF Thyristor (GTO)
Construction and Operating Principle of GTO
Power Metal Oxide Semiconductor Field Effect Transistors (MOSFETS)
Construction and Operating Principle of Power MOSFETs
Static Characteristics of a Power MOSFET
Insulated Gate Bipolar Transistor (IGBT)
Construction and Operating Principle of IGBT
Static Characteristics of an IGBT
Performance Parameters
Converters: AC-DC Rectifiers
Single-Phase Uncontrolled Half-Wave Rectifier
Single-Phase Uncontrolled Full-Bridge Rectifier with RLE Load
Single Phase Half-Wave Controlled Rectifier with Resistive Load
Single-Phase Half-Wave Controlled Rectifier with Resistive-Inductive Load
Single-Phase Half-Controlled Converter with RLE Load
Single-Phase Fully-Controlled Bridge Converter with RLE Load
Three-Phase Half-Wave Uncontrolled Rectifier
Three Phase Full-Wave Uncontrolled Bridge Rectifier Feeding RLE Load
Three-Phase Half-Controlled Converter Feeding RLE Load
Three-Phase Fully-Controlled Bridge Converter Feeding RLE Load
DC to DC Conversion
Types of DC to DC Converters
Buck or Step-Down Converters
Boost or Step-Up Converters
Buck-Boost Converters
DC Line Commutation
Commutation with Parallel Capacitance Configuration
Commutation by Another Load Carrying Thyristor
Voltage Source Inverters
Current Source Inverters
Pulse Width Modulation
Sinusoidal Pulse Width Modulation
Bidirectional AC to DC Voltage Source Converter
Speed Control of DC Motor Drives
Pulse Width Modulated Converter for DC Drive System
Closed Loop Control of DC Motors
Speed Control of AC Motor Drives
Induction Motor Speed Control
Closed Loop Constant Voltage/Constant Frequency Controller
Pulse Width Modulated (PWM) Converter for AC Drive System
Important Formulas
Solved Examples
Practice Exercises
Answers to Practice Exercises
Solved GATE Previous Years’ Questions

·Solved GATE 2018 Paper
·Solved GATE 2019 Paper


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